Flowserve Gearex Rotary Gear Pumps External and Internal Bea User Manual download pdf (Page 36)

EXTERNAL GEAREX USER INSTRUCTIONS ENGLISH 71569246 (2167B-E1)

Flowserve Pump Division 36

The use of precut die-moulded or mandrel-cut

packing is recommended. Make sure that the

packing to be installed is the correct grade and size.

If in doubt, contact Flowserve or a reputable packing

manufacturer.

When inserting packing always insert one ring at a

time. Note that preformed packing rings should not

be pulled straight apart. Instead the rings should be

twisted sideways enough to get them around the

shaft. Use the gland to push packing squarely into

the box. Stagger the rings so that the joints are

approximately 90 degrees apart.

Ensure that the lantern ring is aligned with the

appropriate inlet/outlet ports and that the shaft can

rotate by hand.

When installing the gland, tighten the gland nuts only

finger tight. There must always be a small leakage,

normally a minimum of 120 drops per minute to

atmosphere to lubricate and cool the packing is

required.

6.3 Spare parts

6.3.1 Ordering of spares

Flowserve keep records of all pumps that have been

supplied. When ordering spares the following

information should be quoted:

1) Pump serial number

2) Pump size

3) Part name – taken from section 8

4) Part number – taken from section 8

5) Number of parts required

The pump size and serial number are shown on the

pump nameplate.

To ensure continued satisfactory operation,

replacement parts to the original design specification

should be obtained from Flowserve.

Any change to the original design specification

(modification or use of a non-standard part) will

invalidate the pump’s safety certification.

6.3.2 Storage of spares

Spares should be stored in a clean dry area away

from vibration. Inspection and re-treatment of

metallic surfaces (if necessary) with preservative is

recommended at 6 monthly intervals.

For large quantities of Gearex pumps, it is advisable

to refer to Marketing Department, Brantford, Ontario,

Canada, giving full detail of quantities, sizes and

metallurgy.

The severity of the conditions of service, the extent to

which repairs can be carried out in the field and the

number of units installed will determine to a great

extent the minimum number of spare parts which

should be carried in stock at the site of the

installation.

6.3.3 Returning parts

All materials for return to the factory must have a

Return Material Authorization. Consult the nearest

District Office or Factory Customer Service Dept.

(CS) for shipping instructions and a 'Return Material

Tag’.

Unnecessary delays are avoided when parts or

equipment are returned to the factory using the

correct procedure.

a) On receipt of the Return Material Number, mark

or tag the material to be returned with this

number. In cases where more than one part or

box is returned, print or stencil your company

name and the Return Material Number on each

part or box. This will facilitate quick identification.

Articles being returned should be carefully

packed to prevent damage from handling or from

exposure to weather.

b) Contact your nearest District Office, listing

material to be returned and the reasons for

returning it. Make sure you give the name of the

part and the part number involved and the serial

number of the equipment. Give the method and

date of shipment. This will notify the factory that

material is enroute.

c) Do not return parts without authorization.

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Flowserve Gearex Rotary Gear Pumps External and Internal Bea User Manual Page 36

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